To cite climatekit in publications, please cite the package itself and the canonical ETCCDI references that define the indices.

Coverdale C (2026). climatekit: Unified Climate Indices for Temperature, Precipitation, and Drought. R package version 0.2.0, https://CRAN.R-project.org/package=climatekit.

Alexander L, Zhang X, Peterson T (2006). “Global Observed Changes in Daily Climate Extremes of Temperature and Precipitation.” Journal of Geophysical Research: Atmospheres, 111(D5). doi:10.1029/2005JD006290.

Zhang X, Alexander L, Hegerl G, Jones P, Klein Tank A, Peterson T, Trewin B, Zwiers F (2011). “Indices for Monitoring Changes in Extremes Based on Daily Temperature and Precipitation Data.” Wiley Interdisciplinary Reviews: Climate Change, 2(6), 851–870. doi:10.1002/wcc.147.

Corresponding BibTeX entries:

  @Manual{,
    title = {{climatekit}: Unified Climate Indices for Temperature,
      Precipitation, and Drought},
    author = {Charles Coverdale},
    year = {2026},
    note = {R package version 0.2.0},
    url = {https://CRAN.R-project.org/package=climatekit},
  }

  @Article{,
    title = {Global Observed Changes in Daily Climate Extremes of
      Temperature and Precipitation},
    author = {Lisa V. Alexander and Xuebin Zhang and Thomas C.
      Peterson},
    journal = {Journal of Geophysical Research: Atmospheres},
    year = {2006},
    volume = {111},
    number = {D5},
    doi = {10.1029/2005JD006290},
  }

  @Article{,
    title = {Indices for Monitoring Changes in Extremes Based on Daily
      Temperature and Precipitation Data},
    author = {Xuebin Zhang and Lisa Alexander and Gabriele C. Hegerl
      and Philip Jones and Albert {Klein Tank} and Thomas C. Peterson
      and Blair Trewin and Francis W. Zwiers},
    journal = {Wiley Interdisciplinary Reviews: Climate Change},
    year = {2011},
    volume = {2},
    number = {6},
    pages = {851--870},
    doi = {10.1002/wcc.147},
  }